Buttoning production line

Abstract

The present invention provides a buttoning production line, which includes: a base, and a feeding device, an embedding device, a buttoning device, a first conveyor belt, a positioning and moving device, a lifting device and a second conveyor belt arranged on the base. The feeding device conveys eyelet buttons to the position to be buttoned and positions them. The embedding device selectively embeds the positioned eyelet buttons onto the surface of the workpiece. The buttoning device cooperates with the embedding device to fixedly install the eyelet buttons on the surface of the workpiece. The lifting device is arranged between the first conveyor belt and the second conveyor belt, and the positioning and moving device is arranged on the side of the lifting device. The positioning and moving device selectively positions and moves the workpiece on the first conveyor belt onto the lifting device or positions and moves the workpiece on the lifting device onto the second conveyor belt. The lifting device moves in the vertical direction and selectively moves the workpiece on its surface to the position to be buttoned or moves the workpiece away from the position to be buttoned downward. The present invention can realize automatic feeding, discharging and buttoning operations.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and particularly to a buttoning production line. Background Art

[0002] Existing buttoning equipment for eyelets cannot achieve production line automation. The main difficulty lies in that the buttoning equipment needs to cooperate with two sets of molds to perform buttoning by closing the molds. When buttoning, the two sets of molds need to be respectively arranged on both sides of the opening for buttoning. This requires that before buttoning, it is necessary to ensure that the molds can accurately move to both sides of the buttoning position. After buttoning, the molds and the workpiece need to be separated. In this way, a series of operations of moving and positioning and moving again are required. Although the buttoning action is easy to be automatically executed, the positioning of the workpiece and the operations such as feeding and discharging are generally assisted by manual labor, which results in the inability of the production line to be fully automated.

[0003] For example, Chinese Patent CN209171490U discloses a pneumatic automatic eyelet buttoning machine, which discloses a device capable of automatically buttoning eyelets, but does not disclose how the workpiece is fed and discharged. In actual production, how to use equipment to replace manual labor for precise positioning, feeding, buttoning and discharging of the workpiece has become a technical problem that needs to be solved urgently at present. Summary of the Invention

[0004] In view of this, the present invention provides a buttoning production line that can precisely position feeding and discharging.

[0005] The technical solution of the present invention is realized as follows: The present invention provides a buttoning production line, which includes: a base, and a feeding device, an embedding device and a buttoning device arranged on the base. The feeding device conveys eyelets to the position to be buttoned and positions them. The embedding device selectively embeds the positioned eyelets onto the surface of the workpiece. The buttoning device cooperates with the embedding device to fixedly install the eyelets on the surface of the workpiece. It further includes a first conveyor belt, a positioning and moving device, a lifting device and a second conveyor belt arranged on the base. The conveying directions of the first conveyor belt and the second conveyor belt are on the same straight line. The lifting device is arranged between the first conveyor belt and the second conveyor belt. The positioning and moving device is arranged on the side of the lifting device. The positioning and moving device selectively positions and moves the workpiece on the first conveyor belt to the lifting device or positions and moves the workpiece on the lifting device to the second conveyor belt. The lifting device is located below the position to be buttoned, and the lifting device moves in the vertical direction and selectively moves the workpiece on its surface to the position to be buttoned or moves the workpiece down from the position to be buttoned.

[0006] On the basis of the above technical solutions, preferably, the positioning and moving device includes two clamping structures, which are arranged on opposite sides of the lifting device along the width direction of the first conveyor belt. The clamping structure includes a clamping plate, a first linear driving device, and a second linear driving device. The first linear driving device is fixedly installed on the base, the second linear driving device is fixedly installed on the driving end of the first linear driving device, the clamping plate is fixedly installed on the driving end of the second linear driving device, the driving directions of the first linear driving device and the second linear driving device are perpendicular to each other, the driving direction of the first linear driving device is parallel to the conveying direction of the first conveyor belt, the two clamping plates are selectively close to or away from each other under the drive of the second linear driving device, and the two clamping plates are selectively moved between the first conveyor belt, the lifting device, and the second conveyor belt under the drive of the first linear driving device.

[0007] On the basis of the above technical solutions, preferably, the lifting device includes a tray, a guide rod, a nut, a screw rod, and a driving motor. A plurality of guide rods penetrate the base in the vertical direction, one end of the guide rod is fixedly connected to the tray, the tray is located between the first conveyor belt and the second conveyor belt, the end of the guide rod away from the tray is fixedly connected to the nut, the driving motor is fixedly installed on the base, the screw rod is rotatably installed on the base, the driving motor drives the screw rod to rotate, the screw rod is screwed with the nut, and the length direction of the screw rod is parallel to the length direction of the guide rod.

[0008] On the basis of the above technical solutions, preferably, the feeding device includes a vibrating bowl, a feeding chute, and a limiting clamping block. The vibrating bowl is fixedly installed on the base, the discharge port of the vibrating bowl is communicated with the feeding chute, a limiting clamping block is installed at the end of the feeding chute away from the discharge port of the vibrating bowl, the limiting clamping block is arranged on one side of the position to be buckled close to the embedding device, the limiting clamping block limits and clamps the eyelet buttons sent from the feeding chute, and the limiting clamping block selectively releases the eyelet buttons under the drive of the embedding device.

[0009] On the basis of the above technical solutions, preferably, the limiting clamping block includes two clamping plates, a tension spring, a baffle, and a guide pulley. The same ends of the two clamping plates are rotatably installed at the end of the feeding chute away from the vibrating bowl, the two clamping plates are connected by a tension spring, the rotating shafts of the two clamping plates are parallel, through grooves are formed on the opposite surfaces of the two clamping plates, the through grooves are communicated with the feeding chute, a baffle is fixedly installed at the end of the through groove away from the feeding chute, guide pulleys are rotatably installed on the surfaces of the two clamping plates close to the embedding device, and the embedding device selectively embeds between the two guide pulleys to drive the two clamping plates to open, and drives the eyelet buttons between the two clamping plates to enter the position to be buckled.

[0010] Based on the above technical solutions, preferably, the embedding device includes a guiding block, a linear reciprocating driving device, an embedding block, and an embedding die head. The embedding block and the embedding die head are both slidably installed in the guiding block. The sliding directions of the embedding block and the embedding die head are the same. The linear reciprocating driving device simultaneously drives the embedding block and the embedding die head to slide in the guiding block. The embedding block is selectively embedded between two guiding pulleys. The embedding die head selectively cooperates with the eyelet button between the two clamping plates and drives the eyelet button into the position to be buttoned.

[0011] Based on the above technical solutions, preferably, the linear reciprocating driving device includes a motor, an eccentric wheel, a cam, a bearing, and a hinged rod. The motor is fixedly installed on the surface of the base. The motor drives the eccentric wheel to rotate. The eccentric wheel is embedded in the inner ring of the bearing. The cam is sleeved on the outer ring of the bearing. One end of the hinged rod is hingedly connected to the convex side of the cam. The other end of the hinged rod is fixedly connected to both the embedding block and the embedding die head. The axial direction of the bearing is perpendicular to the sliding direction of the embedding block.

[0012] Based on the above technical solutions, preferably, the buttoning device includes an inner die head, a second guiding block, a return spring, and a driving device. The second guiding block and the driving device are both fixedly connected to the base. The inner die head is embedded in the second guiding block. The inner die head and the second guiding block are elastically connected by a return spring. The inner die head is arranged on the side of the position to be buttoned away from the embedding device. The driving device drives the inner die head to slide in the second guiding block and selectively closes the mold with the embedding die head.

[0013] Based on the above technical solutions, preferably, the driving device includes a driving cylinder and a wedge block. One end of the inner die head away from the buttoning position is provided with a wedge surface. The driving cylinder is fixedly connected to the base. The wedge block is fixedly installed at the driving end of the driving cylinder. The driving cylinder drives the wedge block to perform linear reciprocating motion and selectively fits with the wedge surface, thereby driving the inner die head to perform linear reciprocating motion in the second guiding block.

[0014] The present invention has the following beneficial effects compared with the prior art:

[0015] (1) The present invention provides a production line capable of realizing the positioning of eyelet buttons, the feeding and positioning of workpieces, buttoning, and discharging. The first conveyor belt is used to input workpieces to be buttoned, and the second conveyor belt is used to output workpieces that have been buttoned. The positioning and moving device is used to position and move the workpiece from the first conveyor belt to the lifting device, or move the workpiece from the lifting device to the second conveyor belt. The lifting device is used to lift the positioned workpiece to the position to be buttoned for buttoning treatment. The feeding device can realize the stable positioning and conveying of eyelet buttons. Through the cooperation of the embedding device and the buttoning device, the lifted workpiece can be subjected to eyelet buttoning treatment. After buttoning is completed, the workpiece is discharged, so that the automatic buttoning treatment of eyelet buttons can be realized;

[0016] (2) The present invention adopts a limit clamping block to clamp and position the eyelet buckle sent out by the feeding chute. The limit clamping block is arranged on the side of the position to be punched. The eyelet buckle is pre-positioned by the limit clamping block. At the same time, the limit clamping block is also linked with the embedding device. When the embedded device embeds the positioned eyelet buckle into the position to be punched, it can drive the clamping block first, so that the eyelet buckle can be separated from the limit clamping block. This method can make the punching process no longer limited to a fixed structural surface, so that the workpiece and the device are kept separated, so that the automatic conveying of the workpiece, the punching and the preparation of the eyelet buckle do not interfere with each other, thereby realizing the automated processing of the punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is an axonometric diagram of the buckle production line of the present invention;

[0019] Figure 2 This is an axonometric diagram of the buckle production line of the present invention;

[0020] Figure 3 It is an axonometric diagram of the combination state of the first conveyor belt, the lifting device and the second conveyor belt in the buckle production line of the present invention;

[0021] Figure 4 It is an axonometric diagram of the positioning moving device in the buckle production line of the present invention;

[0022] Figure 5 It is an axonometric diagram of the lifting device in the buckle production line of the present invention;

[0023] Figure 6 It is an axonometric diagram of the lifting device in the buckle production line of the present invention;

[0024] Figure 7 It is an axonometric diagram of the combined state of the feeding device, the embedding device and the buckle-binding device in the buckle-binding production line of the present invention;

[0025] Figure 8 It is a partial exploded view of a part of the structure of the feeding device in the buckle production line of the present invention;

[0026] Figure 9 It is a partial exploded view of the embedding device in the buckle production line of the present invention;

[0027] Figure 10 It is an axonometric view of a buckle-fastening device in a buckle-fastening production line of the present invention;

[0028] Figure 11 This is a partial cross-sectional view of the buttoning device in the buttoning production line of the present invention.

[0029] In the figure: 1 - base, 2 - feeding device, 3 - embedding device, 4 - buttoning device, 5 - first conveyor belt, 6 - positioning and moving device, 7 - lifting device, 8 - second conveyor belt, 21 - vibrating bowl, 22 - feeding chute, 23 - limiting clamping block, 231 - clamping plate, 232 - tension spring, 233 - baffle, 234 - guiding pulley, 235 - through groove, 31 - guiding block, 32 - linear reciprocating driving device, 33 - embedding block, 34 - embedding die head, 321 - motor, 322 - eccentric wheel, 323 - cam, 324 - bearing, 325 - articulated rod, 41 - inner die head, 42 - second guiding block, 43 - return spring, 44 - driving device, 411 - wedge surface, 441 - driving cylinder, 442 - wedge block, 61 - clamping structure, 611 - clamping plate, 612 - first linear driving device, 613 - second linear driving device, 71 - tray, 72 - guiding rod, 73 - nut, 74 - screw rod, 75 - driving motor. Specific embodiments

[0030] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figure 1 shown, in combination with Figure 2 - 11 , the buttoning production line of the present invention includes: a base 1, and a feeding device 2, an embedding device 3, and a buttoning device 4 provided on the base 1. The feeding device 2 conveys the eyelet buttons to the buttoning position and positions them. The embedding device 3 selectively embeds the positioned eyelet buttons onto the surface of the workpiece. The buttoning device 4 cooperates with the embedding device 3 to fixedly install the eyelet buttons on the surface of the workpiece. It further includes a first conveyor belt 5, a positioning and moving device 6, a lifting device 7, and a second conveyor belt 8 provided on the base 1. The conveying directions of the first conveyor belt 5 and the second conveyor belt 8 are on the same straight line. The lifting device 7 is arranged between the first conveyor belt 5 and the second conveyor belt 8. The positioning and moving device 6 is arranged on the side of the lifting device 7. The positioning and moving device 6 selectively positions and moves the workpiece on the first conveyor belt 5 onto the lifting device 7 or positions and moves the workpiece on the lifting device 7 onto the second conveyor belt 8. The lifting device 7 is located below the buttoning position. The lifting device 7 moves in the vertical direction and selectively moves the workpiece on its surface to the buttoning position or moves the workpiece down from the buttoning position.

[0032] In the above embodiments, the first conveyor belt 5 is used to convey the workpieces to be buckled. Both the first conveyor belt 5 and the second conveyor belt 8 are horizontally arranged. During the conveying process, the positioning and moving device 6 selectively clamps and moves the workpieces on the first conveyor belt 5 to the surface of the lifting device 7. The lifting device 7 selectively lifts the workpieces to the buckling position, and the buckling process is carried out by the cooperation of the embedding device 3 and the buckling device 4 on the surface of the workpieces. Specifically, before buckling, the feeding device 2 conveys the eyelets to one side close to the embedding device 3 at the buckling position. During the buckling process, the embedding device 3 first takes out the eyelets from the feeding device 2, and then embeds them into the workpieces. After the embedding is completed, the buckling device 4 cooperates with the embedding device 3 to complete the buckling. After the buckling is completed, the embedding device 3 and the buckling device 4 reset. At the same time, the feeding device 2 synchronously feeds for the next buckling. Then the lifting device 7 drives the buckled workpieces to descend to between the first conveyor belt 5 and the second conveyor belt 8. Then the positioning and moving device 6 moves the workpieces on the lifting device 7 to the second conveyor belt 8. The second conveyor belt 8 conveys the buckled workpieces to the next working station, thus completing the automatic buckling production of the workpieces.

[0033] In a specific embodiment, the positioning and moving device 6 includes two clamping structures 61. The clamping structures 61 are arranged on the opposite side surfaces of the lifting device 7 along the width direction of the first conveyor belt 5. The clamping structure 61 includes a clamping plate 611, a first linear driving device 612 and a second linear driving device 613. The first linear driving device 612 is fixedly installed on the base 1. The second linear driving device 613 is fixedly installed on the driving end of the first linear driving device 612. The clamping plate 611 is fixedly installed on the driving end of the second linear driving device 613. The driving directions of the first linear driving device 612 and the second linear driving device 613 are perpendicular to each other. The driving direction of the first linear driving device 612 is parallel to the conveying direction of the first conveyor belt 5. The two clamping plates 611 are selectively close to or away from each other under the driving of the second linear driving device 613. The two clamping plates 611 are selectively moved between the first conveyor belt 5, the lifting device 7 and the second conveyor belt 8 under the driving of the first linear driving device 612.

[0034] In the above embodiments, the first conveyor belt 5, the lifting device 7, and the second conveyor belt 8 are arranged in sequence along the same horizontal straight line array. The clamping plate 611 moves on the upper side of the straight line structure formed by the arrangement of the first conveyor belt 5, the lifting device 7, and the second conveyor belt 8, and the moving direction is perpendicular to the straight line direction of the arrangement. During the movement of the clamping plate 611, it can selectively move to the side of the straight line structure or above the straight line structure. During the relative movement of the two clamping plates 611, they selectively approach or move away from each other, thereby realizing the clamping and loosening actions. Specifically, the first linear driving device 612 drives the clamping plate 611 to move along the length direction of the straight line structure, so that the clamped workpiece can be moved between the first conveyor belt 5, the lifting device 7, and the second conveyor belt 8. The second linear driving device 613 drives the clamping plate 611 to approach or move away. Specifically, a number of positioning structures are arranged in an array on the side of the clamping plate 611 facing each other, and a clamping station is formed between adjacent positioning structures. The length of the clamping plate 611 can clamp at least 2 workpieces, so that the feeding and discharging can be carried out synchronously. The first linear driving device 612 can be a linear module commonly used in the prior art, and the second linear driving device 613 can also be a linear driving structure commonly used in the prior art.

[0035] In a specific embodiment, the lifting device 7 includes a tray 71, a guide rod 72, a nut 73, a screw rod 74, and a driving motor 75. A plurality of guide rods 72 penetrate the base 1 in the vertical direction. One end of the guide rod 72 is fixedly connected to the tray 71. The tray 71 is located between the first conveyor belt 5 and the second conveyor belt 8. The end of the guide rod 72 away from the tray 71 is fixedly connected to the nut 73. The driving motor 75 is fixedly installed on the base 1. The screw rod 74 is rotatably installed on the base 1. The driving motor 75 drives the screw rod 74 to rotate. The screw rod 74 is screwed with the nut 73. The length direction of the screw rod 74 is parallel to the length direction of the guide rod 72.

[0036] In the above embodiments, the driving motor 75 drives the screw rod 74 to rotate, so that the nut 73 moves relative to the length direction of the screw rod 74. The nut 73 drives the guide rod 72 to move, so that the tray 71 also moves accordingly. The driving motor 75 and the screw rod 74 can be directly coaxially connected, or transmitted through a transmission structure such as a gear or a belt. By controlling the rotation direction and the number of turns of the driving motor 75, the moving position of the tray 71 can be accurately controlled.

[0037] In a specific embodiment, the feeding device 2 includes a vibrating bowl 21, a feeding chute 22 and a limiting clamping block 23. The vibrating bowl 21 is fixedly installed on the base 1. The discharge port of the vibrating bowl 21 is in communication with the feeding chute 22. A limiting clamping block 23 is installed at one end of the feeding chute 22 away from the discharge port of the vibrating bowl 21. The limiting clamping block 23 is arranged on one side of the position to be buckled close to the embedding device 3. The limiting clamping block 23 limits and clamps the eyelet buttons sent from the feeding chute 22, and the limiting clamping block 23 selectively releases the eyelet buttons under the drive of the embedding device 3.

[0038] In the above embodiment, the vibrating bowl 21 vibrates and sorts the unsorted eyelet buttons for discharging. The eyelet buttons after attitude adjustment are discharged through the feeding chute 22. The discharge port of the feeding chute 22 faces the side of the position to be buckled. Preferably, the discharge port of the feeding chute 22 is vertically downward. A limiting clamping block 23 is arranged at its discharge port to clamp and limit the eyelet buttons. The eyelet buttons after being discharged from the vibrating bowl 21 are first discharged under the vibration action, and then sent to the limiting clamping block 23 through the feeding chute 22 under the action of gravity. The limiting clamping block 23 is located between the position to be buckled and the embedding device 3. The embedding device 3 selectively drives the limiting clamping block 23 to release the clamped eyelet buttons and drives the eyelet buttons into the position to be buckled. After the embedding device 3 is reset, the limiting clamping block 23 is also reset.

[0039] In a specific embodiment, the limiting clamping block 23 includes two clamping plates 231, a tension spring 232, a baffle 233 and a guide pulley 234. The same ends of the two clamping plates 231 are rotatably installed at one end of the feeding chute 22 away from the vibrating bowl 21. The two clamping plates 231 are connected by a tension spring 232. The rotating shafts of the two clamping plates 231 are parallel. Through grooves 235 are formed on the opposite sides of the two clamping plates 231. The through grooves 235 are in communication with the feeding chute 22. A baffle 233 is fixedly installed at one end of the through groove 235 away from the feeding chute 22. Guide pulleys 234 are rotatably installed on the sides of the two clamping plates 231 close to the embedding device 3. The embedding device 3 selectively embeds between the two guide pulleys 235 to drive the two clamping plates 231 to open, and drives the eyelet buttons between the two clamping plates 231 into the position to be buckled.

[0040] In the above embodiment, the two clamping plates 231 are symmetrically arranged on both sides of the discharge port of the feeding chute 22. Specifically, they are arranged at the discharge port of the feeding chute 22 in a hinged manner. The directions of the hinge axes are parallel and parallel to the reciprocating driving direction of the embedding device 3. The two clamping plates 231 are connected by a tensioning spring 232. Driven by the tensioning spring 232, the two clamping plates 231 remain in a parallel and closed state. At this time, the through groove 235 therein is connected with the feeding chute 22. The eyelet in the feeding chute 22 can directly slide into the through groove 235 and finally fall into the upper surface of the baffle 233 to achieve the positioning effect. The embedding device 3 can be selectively embedded between the two clamping plates 231 during the movement, thereby driving the two clamping plates 231 to open. The eyelet therein gradually changes from a clamped state to a free state in the process, and can finally be completely separated from the clamping plate 231. At this time, the embedding device 3 continues to drive the eyelet to separate from the clamping plate 231 in the horizontal direction and enter the position to be fastened.

[0041] In a specific embodiment, the embedding device 3 includes a guide block 31, a linear reciprocating drive device 32, an embedding block 33 and an embedding die 34. The embedding block 33 and the embedding die 34 are both slidably installed in the guide block 31. The sliding directions of the embedding block 33 and the embedding die 34 are the same. The linear reciprocating drive device 32 simultaneously drives the embedding block 33 and the embedding die 34 to slide in the guide block 31. The embedding block 33 is selectively embedded between the two guide pulleys 234. The embedding die 34 selectively cooperates with the eyelet buckle between the two clamping plates 231 and drives the eyelet buckle into the position to be fastened.

[0042] In the above embodiment, the embedding block 33 is used to drive the two clamping plates 231 to open or close, and the embedding die 34 is used to mold with the eyelet. As a specific embodiment, a plurality of negative pressure pores are provided on the surface of the embedding die 34 for adsorbing the eyelet and keeping the eyelet stable on the surface of the embedding die 34. The linear reciprocating drive device 32 is used to drive the embedding die 34 and the embedding block 33 to perform linear reciprocating motion. Specifically, any structure that can realize linear reciprocating drive in the prior art can be adopted, such as a drive cylinder.

[0043] In a specific embodiment, the linear reciprocating drive device 32 includes a motor 321, an eccentric wheel 322, a cam 323, a bearing 324 and a hinged rod 325. The motor 321 is fixedly mounted on the surface of the base 1. The motor 321 drives the eccentric wheel 322 to rotate. The eccentric wheel 322 is embedded in the inner ring of the bearing 324. The cam 323 is sleeved on the outer ring of the bearing 324. One end of the hinged rod 325 is hinged to the raised side of the cam 323. The other end of the hinged rod 325 is fixedly connected to the embedded block 33 and the embedded die head 34 at the same time. The axial direction of the bearing 324 is perpendicular to the sliding direction of the embedded block 33.

[0044] In the above embodiments, the linear reciprocating driving device 32 uses a motor drive and realizes reciprocating driving through a mechanical transmission structure. In this structure, the output shaft of the motor drives the eccentric wheel to rotate, and finally, through the bearing 324 and the cam 323, the end of the articulated rod 325 away from the cam 323 makes a linear reciprocating motion. In this structure, the output shaft of the motor can be used to synchronously drive the rotation of other rotating shafts. A set of eccentric wheels, cams, bearings, and articulated rods are also arranged below the other rotating shaft structures, so as to realize synchronous driving of other linear reciprocating driving devices for linear reciprocating driving and maintain synchronization. Correspondingly, one motor 321 can drive multiple embedded dies 34 to perform the operation of embedding eyelet buttons.

[0045] In a specific embodiment, the buttoning device 4 includes an inner die head 41, a second guide block 42, a return spring 43, and a driving device 44. The second guide block 42 and the driving device 44 are both fixedly connected to the base 1. The inner die head 41 is embedded and installed in the second guide block 42. The inner die head 41 and the second guide block 42 are elastically connected through the return spring 43. The inner die head 41 is arranged on one side of the position to be buttoned away from the embedding device 3. The driving device 44 drives the inner die head 41 to slide in the second guide block 42 and selectively closes the die with the embedding die head 34.

[0046] In the above embodiments, the buttoning device 4 is arranged on one side of the position to be buttoned away from the limit clamping block 23. The workpiece moves between the buttoning device 4 and the limit clamping block 23. The embedding device 3 drives the eyelet button in the limit clamping block 23 to break away and embed into the buttoning hole of the workpiece. At this time, the buttoning device 4 drives the inner die head 41 to close the die with the embedding die head 34 of the embedding device 3, so as to realize the buttoning operation. The inner die head 41 is driven by the driving device 44 to move in the second guide block 42. When the inner die head 41 disengages from the inner die head 41, the return spring 43 drives the inner die head 41 to reset. Specifically, the inner die head 41 is provided with a positioning structure along the direction perpendicular to the moving direction of the inner die head 41, so as to limit its non-deflection when moving in the second guide block 42.

[0047] In a specific embodiment, the driving device 44 includes a driving cylinder 441 and a wedge block 442. A wedge surface 411 is arranged at one end of the inner die head 41 away from the buttoning position. The driving cylinder 441 is fixedly connected to the base 1. The wedge block 442 is fixedly installed at the driving end of the driving cylinder 441. The driving cylinder 441 drives the wedge block 442 to make a linear reciprocating motion and selectively fits with the wedge surface 411, so as to drive the inner die head 41 to make a linear reciprocating motion in the second guide block 42.

[0048] In the above embodiments, the driving device 44 specifically adopts a driving cylinder 441 and a wedge block 442. A wedge surface 411 is provided at one end of the inner die head 41 away from the limit clamping block 23 and cooperates with the wedge block 442. During the linear reciprocating motion of the wedge block 442, it selectively contacts the wedge surface 411 and changes the relative position. Through this process, the inner die head 41 can be driven to move within the second guide block 42 by the action of the inclined surface. Specifically, the inner die head 41 is generally columnar, and the inner die head 41 moves along its axis. The moving direction of the wedge block 442 is perpendicular to the axis direction of the inner die head. The associated driving of the wedge block 442 and the wedge surface 411 has the following advantages: a plurality of inner die heads 41 can be arranged within the second guide block 42, and the wedge block 442 can cooperate with a plurality of wedge surfaces 411 in different directions to drive different inner die heads 41 to move.

[0049] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A buttoning production line, comprising: A base (1), a feeding device (2), an embedding device (3) and a buttoning device (4) arranged on the base (1). The feeding device (2) conveys eyelets to the buttoning position and positions them. The embedding device (3) embeds the positioned eyelets onto the surface of the workpiece. The buttoning device (4) cooperates with the embedding device (3) to fixedly install the eyelets on the surface of the workpiece. It is characterized in that it further includes a first conveyor belt (5), a positioning and moving device (6), a lifting device (7) and a second conveyor belt (8) arranged on the base (1). The conveying directions of the first conveyor belt (5) and the second conveyor belt (8) are on the same straight line. The lifting device (7) is arranged between the first conveyor belt (5) and the second conveyor belt (8). The positioning and moving device (6) is arranged on the side of the lifting device (7). The positioning and moving device (6) positions and moves the workpiece on the first conveyor belt (5) onto the lifting device (7) or positions and moves the workpiece on the lifting device (7) onto the second conveyor belt (8). The lifting device (7) is located below the buttoning position. The lifting device (7) moves vertically and moves the workpiece on its surface to the buttoning position or moves the workpiece downward from the buttoning position. The feeding device (2) includes a vibrating bowl (21), a feeding chute (22) and a limiting clamping block (23). The vibrating bowl (21) is fixedly installed on the base (1). The discharge port of the vibrating bowl (21) is communicated with the feeding chute (22). A limiting clamping block (23) is installed at one end of the feeding chute (22) away from the discharge port of the vibrating bowl (21). The limiting clamping block (23) is arranged on one side of the buttoning position close to the embedding device (3). The limiting clamping block (23) limits and clamps the eyelets sent from the feeding chute (22). The limiting clamping block (23) releases the eyelets under the drive of the embedding device (3). The limiting clamping block (23) includes two clamping plates (231), a tension spring (232), a baffle (233) and a guiding pulley (234). The same ends of the two clamping plates (231) are rotatably installed at one end of the feeding chute (22) away from the vibrating bowl (21). The two clamping plates (231) are connected by a tension spring (232). The rotating shafts of the two clamping plates (231) are parallel. Through grooves (235) are formed on the opposite surfaces of the two clamping plates (231). The through grooves (235) are communicated with the feeding chute (22). A baffle (233) is fixedly installed at one end of the through groove (235) away from the feeding chute (22). Guiding pulleys (234) are rotatably installed on the surfaces of the two clamping plates (231) close to the embedding device (3). The embedding device (3) is embedded between the two guiding pulleys (234) to drive the two clamping plates (231) to open and drive the eyelets between the two clamping plates (231) into the buttoning position. The embedding device (3) includes a guiding block (31), a linear reciprocating driving device (32), an embedding block (33) and an embedding die head (34). The embedding block (33) and the embedding die head (34) are both slidably installed in the guiding block (31). The sliding directions of the embedding block (33) and the embedding die head (34) are the same. The linear reciprocating driving device (32) simultaneously drives the embedding block (33) and the embedding die head (34) to slide in the guiding block (31). The embedding block (33) is embedded between two guiding pulleys (234). The embedding die head (34) cooperates with the eyelet button between two clamping plates (231) and drives the eyelet button into the position to be buttoned.

2. The buttoning production line according to claim 1, characterized in that The positioning and moving device (6) includes two clamping structures (61). The clamping structures (61) are arranged on the opposite side surfaces of the lifting device (7) along the width direction of the first conveyor belt (5). The clamping structure (61) includes a clamping plate (611), a first linear driving device (612) and a second linear driving device (613). The first linear driving device (612) is fixedly installed on the base (1). The second linear driving device (613) is fixedly installed on the driving end of the first linear driving device (612). The clamping plate (611) is fixedly installed on the driving end of the second linear driving device (613). The driving directions of the first linear driving device (612) and the second linear driving device (613) are perpendicular to each other. The driving direction of the first linear driving device (612) is parallel to the conveying direction of the first conveyor belt (5). The two clamping plates (611) approach or separate under the drive of the second linear driving device (613). The two clamping plates (611) move between the first conveyor belt (5), the lifting device (7) and the second conveyor belt (8) under the drive of the first linear driving device (612).

3. The buttoning production line according to claim 1, characterized in that The lifting device (7) includes a tray (71), a guiding rod (72), a nut (73), a screw rod (74) and a driving motor (75). A plurality of guiding rods (72) penetrate the base (1) in the vertical direction. One end of the guiding rod (72) is fixedly connected with the tray (71). The tray (71) is located between the first conveyor belt (5) and the second conveyor belt (8). The end of the guiding rod (72) far away from the tray (71) is fixedly connected with the nut (73). The driving motor (75) is fixedly installed on the base (1). The screw rod (74) is rotatably installed on the base (1). The driving motor (75) drives the screw rod (74) to rotate. The screw rod (74) is screwed with the nut (73). The length direction of the screw rod (74) is parallel to the length direction of the guiding rod (72).

4. The buttoning production line according to claim 1, characterized in that The linear reciprocating drive device (32) includes a motor (321), an eccentric wheel (322), a cam (323), a bearing (324), and a hinged rod (325). The motor (321) is fixedly installed on the surface of the base (1). The motor (321) drives the eccentric wheel (322) to rotate. The eccentric wheel (322) is embedded in the inner ring of the bearing (324). The cam (323) is sleeved on the outer ring of the bearing (324). One end of the hinged rod (325) is hingedly connected to the convex side of the cam (323). The other end of the hinged rod (325) is fixedly connected to both the embedding block (33) and the embedding die head (34). The axial direction of the bearing (324) is perpendicular to the sliding direction of the embedding block (33).

5. The buttoning production line according to claim 1, characterized in that The buttoning device (4) includes an inner die head (41), a second guide block (42), a return spring (43), and a drive device (44). Both the second guide block (42) and the drive device (44) are fixedly connected to the base (1). The inner die head (41) is embedded in the second guide block (42). The inner die head (41) is elastically connected to the second guide block (42) through the return spring (43). The inner die head (41) is arranged on the side of the buttoning position away from the embedding device (3). The drive device (44) drives the inner die head (41) to slide in the second guide block (42) and close the mold with the embedding die head (34).

6. The buttoning production line according to claim 5, characterized in that The drive device (44) includes a drive cylinder (441) and a wedge block (442). A wedge surface (411) is arranged at one end of the inner die head (41) away from the buttoning position. The drive cylinder (441) is fixedly connected to the base (1). The wedge block (442) is fixedly installed at the drive end of the drive cylinder (441). The drive cylinder (441) drives the wedge block (442) to perform a linear reciprocating motion and fit with the wedge surface (411), thereby driving the inner die head (41) to perform a linear reciprocating motion in the second guide block (42).

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